Shoe upper



FIG. 1 is a right side elevational view of a shoe upper showing my new design. The broken line showing of a shoe sole is for environmental purposes only and forms no part of the claimed design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a front elevational view thereof; and

FIG. 6 is a rear elevational view thereof. 

The ornamental design for a shoe upper, as shown and described. 